Oil burner



W. G. POPE OIL BURNER Filed June 22, 1957 March 26, 1940.

Patented Mar. 26, 1940 UNITED STATES PATENT 5 mm;

on. BURNER v Willis G. Pope, Angler, N. 0.

Application June 22, 1937,-SerialN0. 149,733 2 Claims. (011 5843,

The present invention relates to oil burners and has particular reference to devices of this character designed for use in tobacco curing.

An object of the invention is to provide an oil burner adapted to be placed in the usual wood furnaces at present employed for tobacco curing houses without necessitating any changes or alterations in the construction of house.

A further object is to provide an oil burner embodying means for preheating and vaporizing the fuel before reaching the burner.

Another object is to provide a burner of simple and practical construction, efficient and reliable in operation, relatively inexpensive to manufacture and otherwise well adapted forv the purposes for which the same is intended.

Other objects and advantages reside in the detailsof construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawing forming part hereof, wherein like numerals refer parts throughout, and in which:

Fig. 1 is a top plan view, and

Fig. 2 is a side elevational view with parts broken away and shown in section.

Referring now to the drawing in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a fuel feed pipe leading from a suitable source of supply and connected to a union 6 from which branch pipes 1, 8 and 9 extend, the pipes l and 9 leading to horizontal, tubular burners I closed at each end. The burners Ill connected to' the respective pipes 9 and II are of similar construction and accordingly a detailed description of one will suifice for both. However one of the burners may be of reduced size to produce a relatively small amount of heat under conditions where the larger burner is not necessary.

Each of the pipes l and 9 overlie the respective burners in spaced relation therefrom, the portion of the pipes above the burners being of increased diameter as shown at H to receive a quantity of loose asbestos wool or similar packing l2. The enlarged end portion of the pipe I I terminates into substantially U-form with one leg I 3 positioned above the burner l0 and the other leg I inserted through one end of the burner and supported in spaced relation therein by a brace l5, the inner end of the leg l4 being closed and terminating short of the other end of the burner to provide a chamber IS in said end of the burner.

The entire enlarged portion ll of the fuel pipe the furnace or to like is filled with the-loose wool packing, including the portion I4 and the burners I 0 are likewise filled with the packing material I2 which surrounds the pipe l4. The pipe l4 and theupper portion of the burners [0 are perforated toform fuel discharge orifices H, the fuel discharged from the orifices in the burners being ignited to produce the desired heat.

Beneath the burners I 0 are arranged open pans or troughs l8 into which liquid fuel may be dis- 10 charged from the pipe 8, thefuel in the pans being used to initially heat the burners l0 and pipes H to vaporize the fuel therein before light.-

- ing the burners. v

The pipes ll, burners l0 and pans I 8 aresup I ported by standards l9.

Checkvalves are arranged in the pipes 9 and H and a valve 2| is also provided for the feed pipe 3. In addition the pipes 9 and II are pro-- vided with control valves 22 having a pointer 23 20 associated with a dial 24 to indicate the position of the valve.

The pipe 8 leading to the pans I8 is provided with a swivel connection 25 to enable the swinging of the pipe to either of the pans l8, thus utilizing a single pipe for the two pans.

In the operation of the device the fuel, preferably a low grade oil, is fed by gravity to the pipes l, 8 and 9, the wool packing becoming saturated and restricting the flow of fuel through the pipes to enable the oil to become vaporized by the heat from the burners l0 before the oil reaches the orifices in the burners. The wool packing surrounding the pipe within the burner and in the chamber l6 prevents collection of any material quantity of unvaporized fuel in the burner, the chamber accommodating such surplus oil that may not quickly vaporize when the burner is first lighted, or that may condense in the burner after thelatter is extinguished and. providing for the consumption of the vapor produced therefrom through the orifices leading from the chamber.

The expansion of the oil and vapor produced by the heating thereof causes the vapor to be discharged from the pin-hole orifices in the burner under pressure for proper combustion when ignited.

I claim:

' 1. An oil burner comprising a horizontal tubular burner, closed at each end and having discharge orifices in its upper portion, a fuel feed pipe inserted in one end of the burner and supported in spaced relation therein, the inner end of the feed pipe terminating in spaced relation ll L from the other end of the burner, said feed pipe within the burner having perforated walls, said feed pipe including a portion outwardly of and overlying the burner for pre-heating and vaporizing oil therein and connected to a supply pipe, a loose absorbent filler in said feed pipe including its perforated portion and its portion overlying the burner and a loose absorbent filler surrounding the portion of the feed pipe within the burner and adapted to retard passage of fuel in advance of the discharge orifices in the burner to create back pressure therein and to cause the distribution Of such pressure equally throughout the area'of the burner for even discharge of the fuel from the several orifices.

2. An oil burner comprising a horizontal tubular burner, closed at each end and having discharge orifices in its upper portion, a fuel feed pipe inserted in one end of the burner and sup- 20 ported in spaced relation therein, the inner end and its portion overlying the burner, and a loose absorbent filler in the fuel collection chamber and surrounding the portion of the feed pipe within the burner and adapted to retard passage of fuelin advance of the discharge orifices in the burner to create back pressure therein and to cause the distribution of such pressure equally throughout the area of the burner for even discharge of the fuel from the several orifices.

WILLIS G. POPE. 

